to start to get used to healthier alternatives and make better choices. Let's take a look at some common lifestyle choices that could help you lose weight easily.

　　Got a soda habit?

　　Drink a lot of soda or fruit juices? Substitute water and tea instead. Studies show that just this one substitution can help you drop 20 pounds in a year.

　　Spending a lot of time buying fast food?

　　Avoid anything that you can get through a window. Bring your lunch instead. Home cooking almost automatically guarantees a meal that's lower in fat and calories than anything you could get through a window.

　　Never finish a meal without grease(油脂) on your hands?

　　Deep－fried foods are loaded with calories and fat. Fry in a little olive oil，instead.

　　Always having a lot of sauces?

　　If you're ordering sandwiches with special sauce or mayo，then you're eating a lot more calories and fat grams than you think you are. Some sauces can add more than 20 grams of fat，and hundreds of calories to your lunch. Mustard (芥末) is a good alternative. It's flavorful, and has virtually no calories or fat.

　　Take a look at what you're doing, and make changes you can live with.

　　21．According to the passage, which of the following is TRUE?

　　A．To make a list of the food you like best can lose weight.

　　B．To get a good idea of different foods is necessary.

　　C．Home cooking is more delicious than snacks.

　　D．Dropping 20 pounds in a year is difficult.

　　答案与解析：B　细节理解题。由第三段第一句"When you become familiar with the foods you choose to eat every day ...healthier alternatives and make better choices."可知，了解不同的食物对健康饮食来说很必要。

　　22．We can learn from the passage that ________.

　　A．mayo is beneficial to people's health

　　 B．most people think that mustard tastes bad

　　C．cooking is a waste of time

　　 D．drinking water contributes to weight loss

　　答案与解析：D　推理判断题。根据常识及第四段"Got a soda habit？"中的"Substitute water and tea instead.Studies show that just this one substitution can help you drop 20 pounds in a year"可知，喝水有助于减肥。

　　23．Which of the following is the best title for the passage?

　　A．The Best Diet Is a Lifestyle Change

　　 B．Stop Buying Fast Food

　　C．What to Do for the Rest of Your Life

　　 D．Lead a Healthy Lifestyle

答案与解析：A　主旨大意题。文章开头就谈到最好的饮食习惯，接下来作者讲到哪些是健康的饮食习惯，最后一段作者总结"Take a look at what you're doing, and make changes you can live with."由此可知，只有A项可以准确地概括全文。